20649356

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28121716

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 47, 52, 68, 71, 91, 94, 119, 142, 182, 188, 221, 238, 284, 329, 364, 442, 476, 497, 611, 658, 799, 884, 923, 994, 1207, 1222, 1316, 1547, 1598, 1846, 1988, 2414, 2444, 3094, 3196, 3337, 3692, 4277, 4828, 5593, 6188, 6461, 6674, 8449, 8554, 10387, 11186, 12922, 13348, 15691, 16898, 17108, 20774, 22372, 23359, 25844, 31382, 33796, 41548, 43381, 46718, 56729, 62764, 72709, 86762, 93436, 109837, 113458, 145418, 173524, 219674, 226916, 290836, 303667, 397103, 439348, 607334, 737477, 794206, 1214668, 1474954, 1588412, 2949908, 5162339, 10324678, 20649356]

約数ペア:

[(1, 20649356), (2, 10324678), (4, 5162339), (7, 2949908), (13, 1588412), (14, 1474954), (17, 1214668), (26, 794206), (28, 737477), (34, 607334), (47, 439348), (52, 397103), (68, 303667), (71, 290836), (91, 226916), (94, 219674), (119, 173524), (142, 145418), (182, 113458), (188, 109837), (221, 93436), (238, 86762), (284, 72709), (329, 62764), (364, 56729), (442, 46718), (476, 43381), (497, 41548), (611, 33796), (658, 31382), (799, 25844), (884, 23359), (923, 22372), (994, 20774), (1207, 17108), (1222, 16898), (1316, 15691), (1547, 13348), (1598, 12922), (1846, 11186), (1988, 10387), (2414, 8554), (2444, 8449), (3094, 6674), (3196, 6461), (3337, 6188), (3692, 5593), (4277, 4828)]